azygos

This discovery of a tuberculosis of the blood-vessels was confirmed by Klebs, who had found a tuberculosis of the azygos veins.

Through the crura pass the splanchnic nerves, and in addition to these the left crus is pierced by the vena azygos minor.

In Halmaturus bennettii there are two azygos veins, one left and one right, of which the left is rather the larger.

The Edentates, at any rate the American forms, have a double vena cava posterior and no azygos vein.